select-bswap.mir
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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=aarch64-- -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s
...
---
name: bswap_s32
legalized: true
regBankSelected: true
registers:
- { id: 0, class: gpr }
- { id: 1, class: gpr }
body: |
bb.0:
liveins: $w0
; CHECK-LABEL: name: bswap_s32
; CHECK: [[COPY:%[0-9]+]]:gpr32 = COPY $w0
; CHECK: [[REVWr:%[0-9]+]]:gpr32 = REVWr [[COPY]]
; CHECK: $w0 = COPY [[REVWr]]
%0(s32) = COPY $w0
%1(s32) = G_BSWAP %0
$w0 = COPY %1
...
---
name: bswap_s64
legalized: true
regBankSelected: true
registers:
- { id: 0, class: gpr }
- { id: 1, class: gpr }
body: |
bb.0:
liveins: $x0
; CHECK-LABEL: name: bswap_s64
; CHECK: [[COPY:%[0-9]+]]:gpr64 = COPY $x0
; CHECK: [[REVXr:%[0-9]+]]:gpr64 = REVXr [[COPY]]
; CHECK: $x0 = COPY [[REVXr]]
%0(s64) = COPY $x0
%1(s64) = G_BSWAP %0
$x0 = COPY %1
...
---
name: bswap_v4s32
alignment: 4
legalized: true
regBankSelected: true
tracksRegLiveness: true
machineFunctionInfo: {}
body: |
bb.0:
liveins: $q0
; CHECK-LABEL: name: bswap_v4s32
; CHECK: liveins: $q0
; CHECK: [[COPY:%[0-9]+]]:fpr128 = COPY $q0
; CHECK: [[REV32v16i8_:%[0-9]+]]:fpr128 = REV32v16i8 [[COPY]]
; CHECK: $q0 = COPY [[REV32v16i8_]]
; CHECK: RET_ReallyLR implicit $q0
%0:fpr(<4 x s32>) = COPY $q0
%1:fpr(<4 x s32>) = G_BSWAP %0
$q0 = COPY %1(<4 x s32>)
RET_ReallyLR implicit $q0
...
---
name: bswap_v2s32
alignment: 4
legalized: true
regBankSelected: true
tracksRegLiveness: true
machineFunctionInfo: {}
body: |
bb.0:
liveins: $d0
; CHECK-LABEL: name: bswap_v2s32
; CHECK: liveins: $d0
; CHECK: [[COPY:%[0-9]+]]:fpr64 = COPY $d0
; CHECK: [[REV32v8i8_:%[0-9]+]]:fpr64 = REV32v8i8 [[COPY]]
; CHECK: $d0 = COPY [[REV32v8i8_]]
; CHECK: RET_ReallyLR implicit $d0
%0:fpr(<2 x s32>) = COPY $d0
%1:fpr(<2 x s32>) = G_BSWAP %0
$d0 = COPY %1(<2 x s32>)
RET_ReallyLR implicit $d0
...
---
name: bswap_v2s64
alignment: 4
legalized: true
regBankSelected: true
tracksRegLiveness: true
machineFunctionInfo: {}
body: |
bb.0:
liveins: $q0
; CHECK-LABEL: name: bswap_v2s64
; CHECK: liveins: $q0
; CHECK: [[COPY:%[0-9]+]]:fpr128 = COPY $q0
; CHECK: [[REV64v16i8_:%[0-9]+]]:fpr128 = REV64v16i8 [[COPY]]
; CHECK: $q0 = COPY [[REV64v16i8_]]
; CHECK: RET_ReallyLR implicit $q0
%0:fpr(<2 x s64>) = COPY $q0
%1:fpr(<2 x s64>) = G_BSWAP %0
$q0 = COPY %1(<2 x s64>)
RET_ReallyLR implicit $q0
...